(~s)
1.
An ~ is someone who does something or goes somewhere very early, especially very early in the morning.
We’ve always been ~s, getting up at 5.30 or 6am...
N-COUNT
2.
An ~ deal or offer is one that is available at a reduced price, but which you must buy earlier than you would normally do.
Early bird discounts are usually available at the beginning of the season.
ADJ: ADJ n